Who is the protagonist of the novel "Roll of Thunder, Hear My Cry" and why is she/he the protagonist. Give at least 5 reasons.

Characters Cassie Logan - The narrator and protagonist. Cassie is the second-oldest Logan child. She has a fiery temper like her Uncle Hammer. Also, she is very naive concerning the facts of racism. Little Man (Clayton Chester Logan) - A meticulously neat first-grader, Little Man is the youngest of the Logan children. Stacey Logan - A thirteen-year-old boy, Stacey is the oldest of the Logan children. He is part-adult, part-child. Christopher-John - A cheerful seven-year-old, Christopher-John is the second youngest of the Logan children. He is timid. Papa (David Logan) - Cassie's father. He values his independence highly, leaving to work on the railroad in order not to lose ownership of Logan land. Mama (Mary Logan) - Cassie's mother, a schoolteacher. Uncle Hammer - Papa's brother, Hammer lives in Chicago. He has a short temper.